covid-19 vaccine vials for vaccination labeled with 1st, 2nd, 3rd and 4th doses for booster shot against omicron variants

1st 2019ncov 2nd 3rd 4th administer background booster bottle bottles care copyspace corona coronavirus cov covid covid19 development disease dose doses first four fourth generic health healthcare immunization infectious jab laboratory medical medicine mrna new omicron one pharmacology prevention research sarscov2 second shot shots third three two vaccination vaccine vaccines variant vials virology virus white